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162189-17-5

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162189-17-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 162189-17-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,2,1,8 and 9 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 162189-17:
(8*1)+(7*6)+(6*2)+(5*1)+(4*8)+(3*9)+(2*1)+(1*7)=135
135 % 10 = 5
So 162189-17-5 is a valid CAS Registry Number.

162189-17-5Relevant articles and documents

Direct, Stereoselective Synthesis of the Protected Paclitaxel (Taxol) Side Chain and High-yield Transformation to Paclitaxel

Kanazawa, Alice M.,Denis, Jean-Noel,Greene, Andrew E.

, p. 2591 - 2592 (1994)

A short, efficient approach to the p-methoxybenzylidene-protected paclitaxel (Taxol) side chain through benzaldehyde benzoylimine-chiral enolate condensation, followed by DDQ-mediated oxazolidine formation and hydrolysis is described; the C-7-triethylsily

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